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Fossils are used to determine the ages of rock layers. ... Index fossils are of organisms that lived over a wide area. They lived for a fairly short period of time. An index fossil allows a scientist to determine the age of the rock it is in.
Related Questions
Select all that apply. Hair infections are generally
caused by
bacteria.
fungi.
viruses.
ODO
cancer.
lice.
DONE
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Answer: A. Bacteria, B. Fungi, E. Lice.
Explanation:
____ is the process in which light energy is transformed into food energy.
life
photosynthesis
abiotic
biotic
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Option B: Photosynthesis.
Answer:
B
Explanation:
I did the test
Which statement is true about DNA?It contains the sugar ribose
It contains a base with nitrogen.
Its monomers contain twice as many phosphate functional groups as RNA's monomers
It is a single-stranded macromolecule.
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please help with 13
Answers
Answer:
where is the video ? please show
elect the correct statement regarding the lungs. Select one: a. The left lung is larger than the right lung. b. Only the right lung has a hilum. c. The left lung contains three lobes while the right lung contains two lobes. d. The left lung has more bronchopulmonary segments than the right lung. e. The left lung contains two lobes while the right lung contains three lobes.
Answers
Answer:
The right lung is smaller than the right to make room for the heart.
Explanation:
so the answer is A :)
The left lung contains two lobes while the right lung contains three lobes. Therefore option E is correct.
The statement that the left lung contains two lobes while the right lung contains three lobes is correct.
The right lung is divided into three lobes: the upper lobe, middle lobe, and lower lobe. On the other hand, the left lung is divided into two lobes: the upper lobe and lower lobe.
This anatomical difference is due to the position of the heart, which is located more towards the left side of the chest. The presence of an additional lobe in the right lung allows for a better fit around the heart.
Understanding the lobes of the lungs is important in assessing and diagnosing respiratory conditions and in surgical procedures that involve lung resection or transplantation.
Therefore option E The left lung contains two lobes while the right lung contains three lobes is correct.
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MacArthur and Wilson found as distance from New Guinea __________ the number of bird species on Pacific Islands __________.
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Answer:
MacArthur and Wilson found as distance from New Guinea increses the number of bird species on Pacific Islands decreases.
An organism's phenotype is the way its _________ is expressed.
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many trees in pennsylvania loose their leaves in the autumn and regrow their leaves in the spring. which graph shows the weather change that results in this pattern.
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3. In 1981, a stray black cat with unusual curled-back ears was adopted by a family in California. Suppose you were the person who owned the first "curl" cat, and wanted to develop it into its own breed. How would you determine whether the allele for curled ears is dominant or recessive? Why does it make a difference for breeders whether an allele for a trait is dominant or recessive?
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It is possible to determine whether the allele for curled ears is dominant or recessive by performing a test cross. It is fundamental for breeders because desired traits show differential patterns of inheritance.
In a diploid (2n) organism, a given gene locus exhibit two different variants or forms called 'alleles'.
An individual is homo-zygous when both alleles for a given gene locus are the same, while an individual is heterozygous when alleles are different.
In cases of complete dominance, the expression of the recessive allele is completely masked in heterozygous individuals.
A breeder is a professional who performs genetic crosses between different organisms in order to obtain offspring (eg., plants, animals, etc) with desired phenotypic features.
A test cross is a type of cross that breeders use to determine whether an allele is dominant or recessive (in this case, the allele for curled ears).
In a test cross, the organism that is a carrier of the unidentified allele is crossed with another organism that is believed to be homo-zygous for the recessive trait, and then the proportion of offspring is examined.
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6. Identify the main role of cellular respiration? *
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Mention the non-living and living characteristics of viruses?
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Explanation:
The Living Characteristics of Viruses are: 1 – They reproduce at a fast rate, only in living host cells. The Non - Living Characteristics of Viruses are: 1 – They are not cells, contain no cytoplasm or cellular organelles.
Hope this helps!!
Asexual reproduction takes place through fragmentation in: a) Potatoes
b) ferns
c) yeas
t d) spirogyra
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[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The Correct choice is ~
[tex] \sf d. \: spirogyra[/tex]4. how many axes of symmetry exist in this figure?
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Answer:
5
Explanation:
5 OR B
Answer:
5
Explanation:
the answer is b
Name one observation in a urine culture that would result in a rejection of the specimen and
culture.
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Answer:
What are 3 things that can be tested in a urinalysis to look for abnormalities?
Things the dipstick test can check for include:
Acidity, or pH. If the acid is abnormal, you could have kidney stones, a urinary tract infection (UTI), or another condition.
Protein. This can be a sign your kidneys aren't working right. ...
Glucose. ...
White blood cells. ...
Nitrites. ...
Bilirubin. ...
Blood in your urine.
Explanation:
During photosynthesis,
is used to break water down into oxygen and hydrogen.
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Answer:
yes it is correct answer ........
Which of these is a compound?
Answers
Answer:
your anwser would be sugar please mark brainliest
Explanation:
Answer:
I think it's sugar.
Explanation:
It is formed by a combination of three atoms: carbon, hydrogen and oxygen.
which skjvcxcghjtfdghjkhsdxfcghjkljgfcvjhbknllkjhfghjjk
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You are a red blood cell in the LEFT VENTRICLE of the heart. In the correct sequence, which blood vessels must you pass through in order to get down to the RIGHT wrist (the palmar arches)?
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The correct sequence of blood vessels that must be passed to get to the Right wrist is :
From the Left ventricle --> Aorta ------> Brachiocephalic artery ------> Right subclavian artery -----> Right axillary artery -----> Right brachial artery-------> Right ulnar and radial arteries -----> Right wrist .The Aorta is the first passage( blood vessel) of the oxygenated blood, pumped out of the left ventricle of the heart, It forms an arch through which other arteries like Brachiocephalic artery originates to distribute blood to the upper parts.
The right subclavian, axillary and brachial all supply blood to the right arm while the Right brachial artery further divides into Right Ulnar and radial arteries.
Hence we can conclude that The correct sequence of blood vessels that must be passed to get to the Right wrist is :
From the Left ventricle --> Aorta ------> Brachiocephalic artery ------> Right subclavian artery -----> Right axillary artery -----> Right brachial artery-------> Right ulnar and radial arteries -----> Right wrist .
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Which of the following statements regarding digestion and absorption of carbohydrates is TRUE? Lactose intolerance results from an insufficiency of the enzyme amylase. Digestible polysaccharides are broken down into the monosaccharides glucose, galactose, and fructose, which can be absorbed. Sucrose is the main form of carbohydrate that can be absorbed by active transport across the intestinal epithelium. Carbohydrate digestion begins in the stomach. Cellulose from plants is a polymer of glucose that can be easily digested and absorbed by the human GI tract.
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Answer:
CARBOHYDRATE DIGESTION AND ABSORPTION
For dietary carbohydrates to be utilized by the body, they must be converted during digestion to monosaccharides. In addition to starch, the other major dietary carbohydrates are the disaccharides lactose and sucrose, and the monosaccharide fructose. The monosaccharides produced by complete digestion of these dietary carbohydrates are glucose, galactose, and fructose.
The digestive process begins with salivary amylase, which randomly cleaves the α-1,4 linkages of starch. Although amylase digestion begins in the saliva, pancreatic α-amylase is more important to the complete digestion of starch (Fig. 19-1). Starch is degraded first to dextrins and then to a mixture of glucose, maltose, and isomaltose (containing the α-1,6 linkages that are not digested by amylase).
The major disaccharidases, located in the brush border of the intestinal lumen, are
•
Maltase—hydrolyzes maltose
•
Sucrase-isomaltase—hydrolyzes sucrose and isomaltose
•
Lactase—hydrolyzes lactose
Whenever lactose goes undigested, it is not absorbed and passes into the large intestine. Here lactose is acted on by the intestinal flora that ferment it, producing large quantities of CO2, hydrogen gas, methane, and organic acids; the last irritate the intestines, increasing intestinal motility. All these products have only one way out. Thus, the symptoms that characterize lactose intolerance are bloating and flatulence and, in extreme cases, a frothy diarrhea. Lactose intolerance is least common in Northern Europeans and their descendants and most common in descendants of Asian, African, and South American origin.
HISTOLOGY
Brush Border Dynamics
The unstirred brush border of the intestinal lumen consists of finger-like processes, known as microvilli, of the surface absorptive cells. Many enzymes associated with the process of digestion and absorption are located on the surface of these microvilli. This allows the products of digestion such as free fatty acids, amino acids, and monoglycerides to be absorbed by the cells rather than be swept into the lumen itself.
Which types of plant cells does glucose originate
Answers
Answer:
Chloroplast
Explanation:
Green plants manufacture glucose through photosynthesis. In a plant cell, chloroplast makes sugar during the process of photosynthesis converting light energy into chemical energy stored in glucose.
A rise in __________ released from the sarcoplasmic reticulum allows actin to bind to myosin and cause a contraction, which requires __________ energy.
Answers
A rise in CALCIUM released from the sarcoplasmic reticulum allows actin to bind to myosin and cause a contraction, which requires ATP energy. ATP is the energy coin of the cell.
Adenosine triphosphate (ATP) is the energy coin that cells use to carry out many metabolic reactions (e.g., reproduction, motion, differentiation, etc).
The sarcoplasmic reticulum is an organelle located inside muscle cells similar to the smooth endoplasmic reticulum.
This organelle (sarcoplasmic reticulum) acts to store calcium which is required during muscle contraction.
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Plants break down the food, prepared during photosynthesis, with the help of _____. (a) Oxygen (b) Carbon dioxide (c) Hydrogen (d) Nitrogen
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Answer: (a) Oxygen
Explanation: Oxygen reacts with the plants food releasing energy.
Solar radiation can cause skin cancer in an individual. If a man with skin cancer caused by solar radiation has offspring, which of the following statements would be true? A. only the man getting skin cancer would be affected B. only the man and his male offspring would be affected C. only the man and his female offspring would be affected D. the man and all of his offspring would be affected
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4. Don't
fishing when it's windy.
b) play
c) go
a) do
d) eat
Answers
Answer:
Go
Explanation:
Dont go fishing when its windy
Different finch species have beaks of different shapes and sizes. What is the source of these different phenotypes
Answers
PLZ HURRY YALL
In transcription what makes mRNA molecule by attaching free floating rna nucleotides together ???
Answers
Answer:
An mRNA transcript is made by an enzyme called RNA polymerase II
Explanation:
Path-breaking medical procedures have begun to pay attention to how microscopic entities aid or hinder bodily health. For example, fecal transplants have helped cure chronic digestive ailments of people who have suffered for years. These new procedures treat the body not as a separate, contained biological entity but as a complex: ___________
a. biomedicine.
b. anthrobiotic environment.
c. personal biosystem.
d. human microbiome.
Answers
Human microbiome that is as complex entity of all the microorganism found in the entire body structure of all living organism and the exact location where they are found.
Fecal transplants is idea for replenishing of good bacteria in the body due to resistance from prolong use of antibiotics. It is specifically for treatment of resistance of antibiotic therapy due C. difficile colitis.
In patient above 65, infected with C. difficile colitis and with resistance to antibiotic especially oral vancomycin, fecal transplant is applied to effectively cure this.
The transplant is conducted through the Colonoscopy. Where the fecal is discharge into the colon as the Colonoscope is withdrawal from the colon
.
Since natural good bacteria are present in fecal and have no effect on the good bacteria in the body, this procedure increased the total number of bacterial(microbiota),by stabilizing the the microbiome and curing the patients.
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A mother has blood type A and her son has blood type O. Which blood types are possible for the father?
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Organisms that live where there is no
light use a process that converts energy
from chemicals into sugars. What is it
called?
A. photosynthesis
B. dark reactions
C. chemosynthesis
D. chemical bonding
Answers
Answer:
c
Explanation:
Answer:
c
Explanation:
Chemosynthesis is the synthesis of organic compounds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals, typically in the absence of sunlight.
nvmhhudd<uldjddhssh?_______
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Answer: nvrmndllhddy = wldjddpshh
